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First time poster but I've lurked here a while now and learned a lot!
About 6 months ago I was diagnosed with sleep apnea with an AHI of 8. With CPAP, I've been able to get my nightly events pretty consistently below 1 but still have never been able to get past the fatigue and brain fog.
For context, I have the AirSense 10 and use the Resmed F40 full mask (goes under the nose).
Part of my original findings of having sleep apnea came from wearing a Wellue O2 ring, and given my lack of symptom improvement I decided to try wearing the ring while sleeping last night. About halfway through the night, I checked the app and saw I was spending a good bit of the night in the high 80% to low 90% O2 range despite my machine showing fewer than 1 AHI through those four hours.
I turned off my machine but kept the ring on and in the next four hours of sleep, without my mask, the ring showed high 90% O2 without any drops. So now I'm confused. I know it's just one night and I might need to try this several more times, but given my lack of symptom improvement (and honestly it sometimes feels like I've been worse since starting CPAP) could this be an indication of CO2 rebreathing or something like that? Any advice on what I could try?
I've tried nasal pillows but never noticed symptom improvement there either.
Below is a screenshot of my Oscar data from last night during the time that I had the machine on.
You may need to add an oxygen line to your hose. I don't know what the safe O2 numbers are. Probably another can advise you on that.
After six months, you don't need ramp anymore. Please turn it off. You don't get any real therapy during ramp, and each time you remove your mask, ramp begins again, robbing you of needed therapy.
Your chart is missing flow limits. Press F12 (FN+F12 for Mac) to copy your chart. That should add the flow limits.
Also, from your post, I don't see any indication that you are rebreathing CO2. Might you have chosen the wrong title, or do you believe you are rebreathing CO2?
Again, welcome, and best wishes for achieving great therapy and comfort!
Machine: ResMed AirCurve 10 Vauto
Mask: Bleep DreamPort Sleep Solution and F&P Nova Micro
You may need to add an oxygen line to your hose. I don't know what the safe O2 numbers are. Probably another can advise you on that.
After six months, you don't need ramp anymore. Please turn it off. You don't get any real therapy during ramp, and each time you remove your mask, ramp begins again, robbing you of needed therapy.
Your chart is missing flow limits. Press F12 (FN+F12 for Mac) to copy your chart. That should add the flow limits.
Also, from your post, I don't see any indication that you are rebreathing CO2. Might you have chosen the wrong title, or do you believe you are rebreathing CO2?
Again, welcome, and best wishes for achieving great therapy and comfort!
I'll turn ramp off, thanks for that advice. I'm typically good about never taking the mask off during the night but understood on not needing to bother with it when I first lay down.
My thoughts on rebreathing CO2 came from the low O2 levels combined with the apparent lack of events. My only thought was maybe I'm technically not having events, but I'm rebreathing my own air and leading to lower O2 that way. I assumed if I'm not breathing my own air, and I'm having very few events, that my O2 levels should have maintained 95%+ throughout the night.
I'm pretty certain you're not rebreathing CO2 from the mask. If you've not done so, you need to get your doctor to measure your oxygen levels to be more official. You probably need tested for lung efficiency and possibly for causes of low oxygen.
What did your detailed sleep study report on the oxygen levels? That would have recorded oxygen overnight.
You can add oxygen to a CPAP with a different hose that has an included hose bib.
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEBSITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Sorry about that! Thanks for your patience, new screenshot attached with everything you asked. Included my last three nights.
(04-27-2025, 12:47 PM)SarcasticDave94 Wrote: I'm pretty certain you're not rebreathing CO2 from the mask. If you've not done so, you need to get your doctor to measure your oxygen levels to be more official. You probably need tested for lung efficiency and possibly for causes of low oxygen.
What did your detailed sleep study report on the oxygen levels? That would have recorded oxygen overnight.
You can add oxygen to a CPAP with a different hose that has an included hose bib.
I can't find my sleep study report at the moment, but when I went to the pulmonologist they tested for lung capacity and efficiency and all of that came back fine. I saw quite a few O2 drops throughout the night when I first used the oxygen ring which prompted my sleep study, but assumed that to be due to not having a CPAP machine at that time.
